阅读说明：本技术 一种应急广播控制装置 (Emergency broadcast control device ) 是由 吴志祥 徐伟佳 范世功 于 2021-08-25 设计创作，主要内容包括：本发明公开了一种应急广播控制装置,包括广播杆和广播喇叭,广播喇叭安装在广播杆上,还包括用于控制广播喇叭在广播杆上稳定升降的升降控制机构；用于控制升降控制机构定位固定和滑动的稳定机构；用于不影响升降控制机构给广播喇叭通电的供电机构,作为优化,所述升降控制机构包括固定在广播杆表面的收放箱。该应急广播控制装置,通过升降控制机构将广播喇叭安装在广播杆上,如此在需要检修时,工作人员打开收放箱,匀速转动内部收卷轴,松开连接绳,使稳定滑套在稳定滑槽内均速下移,直至和广播喇叭一起被放下,如此通过四条稳定滑槽和稳定滑套的配合,使其下降的更加稳定,不会晃动,防止广播于广播杆发生碰撞,起到了保护作用。(The invention discloses an emergency broadcast control device, which comprises a broadcast rod, a broadcast horn and a lifting control mechanism, wherein the broadcast horn is arranged on the broadcast rod; the stabilizing mechanism is used for controlling the positioning, fixing and sliding of the lifting control mechanism; the power supply mechanism is used for not influencing the electrifying of the broadcast horn by the lifting control mechanism, and as optimization, the lifting control mechanism comprises a storage box fixed on the surface of the broadcast rod. This emergent broadcast controlling means installs broadcast loudspeaker on the broadcasting pole through lifting control mechanism, so when needs are overhauld, the staff opens and receive and releases the case, at the uniform velocity rotates inside rolling axle, loosen and connect the rope, make stable sliding sleeve move down in stabilizing the spout even speed, until being put down with broadcast loudspeaker together, so through the cooperation of four stable spouts and stable sliding sleeve, make its decline more stable, can not rock, prevent the broadcast in the broadcasting pole bump, played the guard action.)

1. The utility model provides an emergent broadcast controlling means, includes broadcasting pole (1) and broadcast loudspeaker (2), and broadcast loudspeaker (2) are installed on broadcasting pole (1), its characterized in that: also comprises

A lifting control mechanism (3) for controlling the broadcasting horn (2) to stably lift on the broadcasting rod (1);

a stabilizing mechanism (4) for controlling the positioning, fixing and sliding of the lifting control mechanism (3);

and the power supply mechanism (5) is used for preventing the broadcasting horn (2) from being stained with water drops in the moving process and from being short-circuited after being electrified.

2. The emergency broadcast control device according to claim 1, wherein: lifting control mechanism (3) are including fixing receiving and releasing case (31) on broadcasting pole (1) surface, still including offering at broadcasting pole (1) surface and central stable spout (32) and central groove (33) respectively, the outside installation of broadcasting pole (1) and stable spout (32) sliding connection's stable sliding sleeve (34), the outside fixed mounting panel (35) of stable sliding sleeve (34), stabilize interior roof installation guide pulley (36) of spout (32), set up between stable sliding sleeve (34) and receiving and releasing case (31) and connect rope (37).

3. An emergency broadcast control apparatus according to claim 2, wherein: receive and release case (31) and ground distance and be not less than one meter six, and need the key to open, it has four to stabilize spout (32), and the extrusion distributes in four azimuths of broadcasting pole (1), stable sliding sleeve (34) have a ring and four lugs to constitute, and four lugs are located and stabilize spout (32), broadcast loudspeaker (2) are through the bolt fastening on mounting panel (35).

4. An emergency broadcast control apparatus according to claim 2, wherein: a through hole is formed between the stabilizing sliding groove (32) and the central groove (33), and the connecting rope (37) penetrates through the guide pulley (36), the through hole and the central groove (33).

5. An emergency broadcast control apparatus according to claim 3, wherein: the stabilizing mechanism (4) comprises an opening and closing sliding groove (41) formed in the surface of a convex block on the inner side of the stabilizing sliding sleeve (34), an opening and closing sliding plate (42) is installed on the inner side of the opening and closing sliding groove (41), and a clamping groove (43) is formed in the bottom wall of the opening and closing sliding groove (41);

the stabilizing mechanism (4) further comprises an accommodating groove (44) formed in the stabilizing sliding groove (32), a compression spring (45) is installed inside the accommodating groove (44), and a clamping plate (46) is installed on the compression spring (45).

6. An emergency broadcast control apparatus according to claim 5, wherein: set up in the spout (41) that opens and shuts and drag the spring, when the slide (42) that opens and shuts does not receive the force, the slide (42) that opens and shuts is located the spout (41) middle part that opens and shuts, seal draw-in groove (43), and the top keeps apart with spout (41) roof that opens and shuts, the distance is greater than cardboard (46) and is close to the thickness that the spout (41) held that opens and shuts, the distance that spout (41) that opens and shuts is located draw-in groove (43) below is greater than the length of the slide (42) that opens and shuts, it is less than the required power of compression spring (45) compression to drag the required power of spring compression.

7. An emergency broadcast control apparatus according to claim 5, wherein: the bottom of the clamping plate (46) close to one end of the opening and closing sliding groove (41) is provided with an inclined surface, and when the clamping plate (46) is located in the clamping groove (43), the boundary of the inclined surface and the horizontal plane is flush with the opening of the accommodating groove (44).

8. An emergency broadcast control apparatus according to claim 2, wherein: the power supply mechanism (5) comprises a top cover (53) arranged on the top wall in the stable sliding groove (32), a contact (54) is fixedly arranged on the inner bottom wall of the top cover (53), an installation groove (55) is formed in the inner bottom wall of the top cover (53), an installation spring (56) is arranged in the installation groove (55), an installation block (57) is arranged at the bottom of the installation spring (56), and a bottom plate (51) is rotatably connected below the top cover (53);

the power supply mechanism (5) further comprises a conductive rod (52) fixedly installed at the top of the stable sliding sleeve (34), and the conductive rod (52) is electrically connected with the broadcast horn (2).

9. The emergency broadcast control device according to claim 8, wherein: the contact (54) is connected with a power supply, the inner bottom wall of the bottom plate (51) is arranged to be an inclined plane, transformer oil is filled inside the inclined plane, a through hole is formed in the bottom of the bottom plate (51), an opening above the through hole is formed in a thread corresponding to the conductive rod (52), the head-tail angle of the thread is one hundred eighty degrees, the mounting block (57) extends into the bottom plate (51), and a sliding block corresponding to the thread is arranged on the surface of the conductive rod (52).

Technical Field

The invention relates to the technical field of emergency broadcast maintenance, in particular to an emergency broadcast control device.

Background

The emergency broadcast is a rapid and fast information transmission channel which is widely distributed in cities, towns and rural areas of China when sudden public crisis such as major natural disasters, sudden events, public health and social safety occur.

In order to guarantee that emergency broadcasting can be normally used when needed, the emergency broadcasting control device is required to be overhauled regularly, the broadcasting is mostly installed at high altitude for guaranteeing the sound propagation distance, and therefore overhauling at each time is very troublesome.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention aims to provide an emergency broadcast control device which has the function of controlling the broadcast to stably rise and fall.

The invention has the following beneficial effects:

1. this emergent broadcast controlling means installs broadcast loudspeaker on the broadcasting pole through lifting control mechanism, so when needs are overhauld, the staff opens and receive and releases the case, at the uniform velocity rotates inside rolling axle, loosen and connect the rope, make stable sliding sleeve move down in stabilizing the spout even speed, until being put down with broadcast loudspeaker together, so through the cooperation of four stable spouts and stable sliding sleeve, make its decline more stable, can not rock, prevent the broadcast in the broadcasting pole bump, played the guard action.

2. This emergent broadcast controlling means, through using the broadcast of stabilizing mean in fixed high air, in the in-process that rises at the broadcast, stable sliding sleeve upwards slides in stabilizing the spout, the cardboard slides and promotes the slide downstream that opens and shuts in opening and shutting the spout, until the draw-in groove is complete open, the cardboard is pushed away in the draw-in groove by compression spring, stable sliding sleeve is here fixed, when needing to put down the broadcast, tighten up earlier and connect the rope, the slide that opens and shuts loses the cardboard restriction, extension spring promotes to reset, seal the draw-in groove once more, loosen and connect the rope, stable sliding sleeve moves down, the draw-in groove is sealed this moment, the cardboard can't get into, stable sliding sleeve normally glides.

3. This emergency broadcast controlling means, through making the juncture of cardboard inclined plane and horizontal plane in accomodating groove opening parallel and level, the cardboard gets into the draw-in groove, receive inertial influence, the inclined plane and the partial horizontal plane of cardboard get into the draw-in groove together, so draw-in groove and cardboard bottom horizontal plane contact, the rising of time stable sliding sleeve is obstructed, stable sliding sleeve disappears the back at this fixed inertia, compression spring resumes balanced state, cardboard horizontal plane part returns and accomodates the inslot, play the positioning action so, prevent that stable sliding sleeve from shifting out cardboard fixed range, the safety in utilization of equipment has been guaranteed.

4. This emergency broadcast controlling means, the notice sets up power supply mechanism between broadcast loudspeaker and power, broadcast loudspeaker rises after reseing, the conducting rod gets into the through hole, the high right side of left side is low in the bottom plate this moment, the installation piece is bulldozed in the mounting groove, inside transformer oil liquid level is less than the through hole, conducting rod picture sealing washer and screw thread contact, drive the bottom plate through the screw thread and rotate one hundred eighty degrees, make the bottom plate become the low right side of left side height, so in the installation piece inserts transformer oil, make its liquid level rise and cross the contact, so after the conducting rod gets into the bottom plate inside, conducting rod surface moisture and transformer oil contact, sink the bottom by the density influence, conducting rod and contact afterwards.

Therefore, the power connector part of the broadcast horn is prevented from being stained with dew or rainwater in the moving process, so that the short circuit is caused after the circuit is switched on, and the safety of equipment is ensured.

The invention adopts the following technical scheme for realizing the technical purpose: an emergency broadcast control device comprises a broadcast rod and a broadcast horn, wherein the broadcast horn is arranged on the broadcast rod, and the emergency broadcast control device also comprises

The lifting control mechanism is used for controlling the broadcasting horn to stably lift on the broadcasting rod;

the stabilizing mechanism is used for controlling the positioning, fixing and sliding of the lifting control mechanism;

the power supply mechanism is used for preventing the broadcasting horn from being stained with water drops in the moving process and from being short-circuited after being electrified.

As optimization, the lifting control mechanism comprises a folding and unfolding box fixed on the surface of the broadcasting rod, a stable sliding groove and a central groove which are respectively arranged on the surface and the center of the broadcasting rod, a stable sliding sleeve which is connected with the stable sliding groove in a sliding manner is installed on the outer side of the broadcasting rod, a fixed mounting plate is arranged on the outer side of the stable sliding sleeve, a guide pulley is installed on the inner top wall of the stable sliding groove, and a connecting rope is arranged between the stable sliding sleeve and the folding and unfolding box.

As optimization, the distance between the retractable box and the ground is not less than six meters, the retractable box needs to be opened by a key, the number of the stable sliding grooves is four, the stable sliding grooves are extruded and distributed in four directions of the broadcasting rod, the stable sliding sleeve is provided with a circular ring and four convex blocks, the four convex blocks are located in the stable sliding grooves, and the broadcasting horn is fixed on the mounting plate through bolts.

Preferably, a through hole is formed between the stabilizing sliding groove and the central groove, and the connecting rope penetrates through the guide pulley, the through hole and the central groove.

Preferably, the stabilizing mechanism comprises an opening-closing sliding groove formed in the surface of a convex block on the inner side of the stabilizing sliding sleeve, an opening-closing sliding plate is installed on the inner side of the opening-closing sliding groove, and a clamping groove is formed in the bottom wall of the opening-closing sliding groove;

preferably, the stabilizing mechanism further comprises an accommodating groove formed in the stabilizing sliding groove, a compression spring is arranged inside the accommodating groove, and a clamping plate is arranged on the compression spring.

As the optimization, set up in the spout that opens and shuts and drag the spring, when the slide that opens and shuts is not atress, the slide that opens and shuts is located the spout middle part that opens and shuts, seals the draw-in groove, and the top keeps away with the spout roof that opens and shuts, and the distance is greater than the cardboard and is close to the thickness that the spout held that opens and shuts, and the spout that opens and shuts is located the distance of draw-in groove below and is greater than the length of the slide that opens and shuts, drags the required power of spring compression and is less than the required power of compression spring compression.

As an optimization, the bottom of the clamping plate near one end of the opening and closing sliding groove is provided with an inclined plane, and when the clamping plate is located in the clamping groove, the inclined plane and the horizontal plane are in line with the opening of the accommodating groove.

Preferably, the power supply mechanism comprises a top cover arranged on the top wall in the stable sliding chute, a contact is fixedly arranged on the inner bottom wall of the top cover, an installation groove is formed in the inner bottom wall of the top cover, an installation spring is arranged in the installation groove, an installation block is arranged at the bottom of the installation spring, and a bottom plate is rotatably connected below the top cover;

preferably, the power supply mechanism further comprises a conductive rod fixedly mounted at the top of the stabilizing sliding sleeve, and the conductive rod is electrically connected with the broadcast horn.

Preferably, the contact is connected with a power supply, the inner bottom wall of the bottom plate is arranged to be an inclined plane, transformer oil is filled in the inclined plane, a through hole is formed in the bottom of the bottom plate, an opening above the through hole is formed in a thread corresponding to the conductive rod, the head-tail angle of the thread is one hundred eighty degrees, the mounting block extends into the bottom plate, and a sliding block corresponding to the thread is arranged on the surface of the conductive rod.

Drawings

In the figure: 1. a broadcast pole; 2. a broadcast speaker; 3. a lift control mechanism; 31. a storage box; 32. a stabilizing chute; 33. a central slot; 34. stabilizing the sliding sleeve; 35. mounting a plate; 36. a guide pulley; 37. connecting ropes; 4. a stabilizing mechanism; 41. the sliding chute is opened and closed; 42. a sliding plate is opened and closed; 43. a card slot; 44. a receiving groove; 45. a compression spring; 46. clamping a plate; 5. a power supply mechanism; 51. a base plate; 52. a conductive rod; 53. a top cover; 54. a contact; 55. mounting grooves; 56. installing a spring; 57. and (7) installing the block.

Fig. 1 is a schematic structural diagram of an emergency broadcast control device according to the present invention.

Fig. 2 is a partially enlarged view of the emergency broadcast control apparatus of the present invention shown in fig. 1.

Fig. 3 is a sectional view showing the emergency broadcast control apparatus of the present invention in fig. 2.

Fig. 4 is a structural stability mechanism showing an emergency broadcast control device according to the present invention.

Fig. 5 is a schematic view of the inner side of the sliding sleeve with stable structure of the emergency broadcast control device of the present invention.

Fig. 6 is an internal schematic view of a power supply mechanism of the emergency broadcast control device structure of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

Referring to fig. 1-3, an emergency broadcast control device includes a broadcast rod 1 and a broadcast speaker 2, the broadcast speaker 2 is mounted on the broadcast rod 1, and the emergency broadcast control device further includes

A lifting control mechanism 3 for controlling the broadcasting horn 2 to stably lift on the broadcasting rod 1;

a stabilizing mechanism 4 for controlling the positioning, fixing and sliding of the lifting control mechanism 3;

and the power supply mechanism 5 is used for preventing the broadcasting loudspeaker 2 from being stained with water drops in the moving process and from being short-circuited after being electrified.

The lifting control mechanism 3 comprises a storage box 31 fixed on the surface of the broadcasting rod 1, a stabilizing sliding groove 32 and a central groove 33 which are respectively arranged on the surface and the center of the broadcasting rod 1, a stabilizing sliding sleeve 34 which is connected with the stabilizing sliding groove 32 in a sliding manner is arranged on the outer side of the broadcasting rod 1, a fixing and mounting plate 35 on the outer side of the stabilizing sliding sleeve 34, a guide pulley 36 is arranged on the inner top wall of the stabilizing sliding groove 32, and a connecting rope 37 is arranged between the stabilizing sliding sleeve 34 and the storage box 31.

Receive and release case 31 and ground distance and be not less than one meter six, and need the key to open, stabilize spout 32 and have four, and the extrusion distributes in four positions of broadcasting pole 1, and it has a ring and four lugs to stabilize sliding sleeve 34 and constitutes, and four lugs are located and stabilize spout 32, and broadcasting loudspeaker 2 passes through the bolt fastening on mounting panel 35.

A through hole is arranged between the stable sliding chute 32 and the central groove 33, and the connecting rope 37 passes through the guide pulley 36, the through hole and the central groove 33.

Install broadcast loudspeaker 2 on broadcasting pole 1 through lifting control mechanism 3, so when needing to overhaul, the staff opens receiving and releasing box 31, at the uniform velocity rotate inside rolling axle, loosen and connect rope 37, make stable sliding sleeve 34 move down at the uniform velocity in stabilizing sliding groove 32, until being put down with broadcast loudspeaker 2 together, so through four the cooperation of stabilizing sliding groove 32 and stable sliding sleeve 34, make its decline more stable, can not rock, prevent to broadcast in broadcasting pole 1 bump, the guard action has been played.

Example 2

Referring to fig. 1-5, an emergency broadcast control device includes a broadcast rod 1 and a broadcast speaker 2, the broadcast speaker 2 is mounted on the broadcast rod 1, and the emergency broadcast control device further includes

A lifting control mechanism 3 for controlling the broadcasting horn 2 to stably lift on the broadcasting rod 1;

a stabilizing mechanism 4 for controlling the positioning, fixing and sliding of the lifting control mechanism 3;

and the power supply mechanism 5 is used for preventing the broadcasting loudspeaker 2 from being stained with water drops in the moving process and from being short-circuited after being electrified.

The lifting control mechanism 3 comprises a storage box 31 fixed on the surface of the broadcasting rod 1, a stabilizing sliding groove 32 and a central groove 33 which are respectively arranged on the surface and the center of the broadcasting rod 1, a stabilizing sliding sleeve 34 which is connected with the stabilizing sliding groove 32 in a sliding manner is arranged on the outer side of the broadcasting rod 1, a fixing and mounting plate 35 on the outer side of the stabilizing sliding sleeve 34, a guide pulley 36 is arranged on the inner top wall of the stabilizing sliding groove 32, and a connecting rope 37 is arranged between the stabilizing sliding sleeve 34 and the storage box 31.

The stabilizing mechanism 4 comprises an opening and closing sliding groove 41 arranged on the surface of a convex block on the inner side of the stabilizing sliding sleeve 34, an opening and closing sliding plate 42 is arranged on the inner side of the opening and closing sliding groove 41, and a clamping groove 43 is arranged on the bottom wall of the opening and closing sliding groove 41;

the stabilizing mechanism 4 further comprises a storage groove 44 formed in the stabilizing sliding groove 32, a compression spring 45 is mounted inside the storage groove 44, and a clamping plate 46 is mounted on the compression spring 45.

Set up in the spout 41 that opens and shuts and drag the spring, when the slide 42 that opens and shuts does not receive the force, the slide 42 that opens and shuts is located the spout 41 middle part that opens and shuts, seals draw-in groove 43, and the top keeps away from with the spout 41 roof that opens and shuts, and the distance is greater than the cardboard 46 and is close to the thickness that the spout 41 was held that opens and shuts, and the spout 41 that opens and shuts is located the distance of draw-in groove 43 below is greater than the length of the slide 42 that opens and shuts, and the required power of the spring compression of dragging is less than the required power of compression spring 45 compression.

The bottom of the clamping plate 46 near one end of the opening and closing sliding groove 41 is provided with an inclined surface, and when the clamping plate 46 is positioned in the clamping groove 43, the boundary of the inclined surface and the horizontal plane is flush with the opening of the accommodating groove 44.

By using the stabilizing mechanism 4 to fix the broadcast in the air, during the broadcast ascending process, the stabilizing sliding sleeve 34 slides upwards in the stabilizing sliding groove 32, when the stable sliding sleeve 34 touches the clamping plate 46, the clamping plate 46 is pressed into the accommodating groove 44, the stable sliding sleeve 34 continues to move, the clamping plate 46 is pushed into the opening and closing sliding groove 41 by the compression spring 45, the stable sliding sleeve 34 continues to move, the clamping plate 46 slides in the opening and closing sliding groove 41 and pushes the opening and closing sliding plate 42 to move downwards until the clamping groove 43 is completely opened, the clamping plate 46 is pushed into the clamping groove 43 by the compression spring 45, under the influence of inertia, the inclined surface of the clamping plate 46 and a part of the horizontal surface of the part of the water enter the clamping groove 43 together, thus, when the clamping groove 43 contacts with the horizontal plane at the bottom of the clamping plate 46, the stable sliding sleeve 34 is hindered from rising, and after the fixed inertia of the stable sliding sleeve 34 disappears, the compression spring 45 is restored to the equilibrium state and the horizontal surface portion of the catch plate 46 is retracted into the receiving groove 44.

When broadcasting needs to be put down, tighten up earlier and connect rope 37, stable sliding sleeve 34 shifts up, draw-in groove 43 lower surface is pressed cardboard 46 and is retrieved and accomodate groove 44, stable sliding sleeve 34 continues to shift up, cardboard 46 moves back to open and shut spout 41, slide 42 that opens and shuts reachs the end and can't move down, push cardboard 46 to accomodate groove 44, slide 42 that opens and shuts loses cardboard 46 restriction, extension spring promotes to reset, close draw-in groove 43 once more, loosen and connect rope 37, stable sliding sleeve 34 moves down, draw-in groove 43 is sealed this moment, cardboard 46 can't get into, stable sliding sleeve 34 normally glides.

Example 3

Referring to fig. 1-3 and 6, an emergency broadcast control device includes a broadcast rod 1 and a broadcast speaker 2, the broadcast speaker 2 is mounted on the broadcast rod 1, and the emergency broadcast control device further includes

A lifting control mechanism 3 for controlling the broadcasting horn 2 to stably lift on the broadcasting rod 1;

and the power supply mechanism 5 is used for preventing the broadcasting loudspeaker 2 from being stained with water drops in the moving process and from being short-circuited after being electrified.

A power supply mechanism 5 for not affecting the power supply of the broadcast horn 2 by the lifting control mechanism 3;

the power supply mechanism 5 comprises a top cover 53 arranged on the top wall in the stabilizing chute 32, a contact 54 is fixedly arranged on the inner bottom wall of the top cover 53, an installation groove 55 is formed in the inner bottom wall of the top cover 53, an installation spring 56 is arranged in the installation groove 55, an installation block 57 is arranged at the bottom of the installation spring 56, and the lower part of the top cover 53 is rotatably connected with the bottom plate 51;

the power supply mechanism 5 further comprises a conductive rod 52 fixedly mounted on the top of the stabilizing sliding sleeve 34, and the conductive rod 52 is electrically connected to the broadcasting speaker 2.

The contact 54 is connected with a power supply, the inner bottom wall of the bottom plate 51 is arranged to be an inclined plane, transformer oil is filled in the inner bottom wall, a through hole is formed in the bottom of the bottom plate 51, an opening above the through hole is formed in a thread corresponding to the conducting rod 52, the head-tail angle of the thread is one hundred eighty degrees, the mounting block 57 extends into the bottom plate 51, and a sliding block corresponding to the thread is arranged on the surface of the conducting rod 52.

The power supply mechanism 5 is arranged between the broadcast horn 2 and the power supply, after the broadcast horn 2 rises and resets, the conducting rod 52 enters the through hole, the bottom plate 51 is high at the left and low at the right, the mounting block 57 is pushed and pressed in the mounting groove 55, the liquid level of the transformer oil inside the transformer is lower than the through hole, the picture sealing ring of the conducting rod 52 is in contact with the thread, the bottom plate 51 is driven to rotate by the thread for one hundred eighty degrees, the bottom plate 51 is changed into high at the left and low at the right, the mounting block 57 is inserted into the transformer oil, the liquid level of the mounting block rises to cover the contact 54, the conducting rod 52 enters the bottom plate 51, the surface water of the conducting rod 52 is in contact with the transformer oil and sinks to the bottom under the influence of density, and then the conducting rod 52 is in contact with the contact 54.

Therefore, the power supply connector part of the broadcast loudspeaker 2 is prevented from being stained with dew or rainwater in the moving process, and after the circuit is connected, short circuit is caused, and the safety of equipment is ensured.

Example 4

Referring to fig. 1-6, an emergency broadcast control device includes a broadcast rod 1 and a broadcast speaker 2, the broadcast speaker 2 is mounted on the broadcast rod 1, and the emergency broadcast control device further includes

A lifting control mechanism 3 for controlling the broadcasting horn 2 to stably lift on the broadcasting rod 1;

a stabilizing mechanism 4 for controlling the positioning, fixing and sliding of the lifting control mechanism 3;

and the power supply mechanism 5 is used for preventing the broadcasting loudspeaker 2 from being stained with water drops in the moving process and from being short-circuited after being electrified.

The lifting control mechanism 3 comprises a storage box 31 fixed on the surface of the broadcasting rod 1, a stabilizing sliding groove 32 and a central groove 33 which are respectively arranged on the surface and the center of the broadcasting rod 1, a stabilizing sliding sleeve 34 which is connected with the stabilizing sliding groove 32 in a sliding manner is arranged on the outer side of the broadcasting rod 1, a fixing and mounting plate 35 on the outer side of the stabilizing sliding sleeve 34, a guide pulley 36 is arranged on the inner top wall of the stabilizing sliding groove 32, and a connecting rope 37 is arranged between the stabilizing sliding sleeve 34 and the storage box 31.

Receive and release case 31 and ground distance and be not less than one meter six, and need the key to open, stabilize spout 32 and have four, and the extrusion distributes in four positions of broadcasting pole 1, and it has a ring and four lugs to stabilize sliding sleeve 34 and constitutes, and four lugs are located and stabilize spout 32, and broadcasting loudspeaker 2 passes through the bolt fastening on mounting panel 35.

A through hole is arranged between the stable sliding chute 32 and the central groove 33, and the connecting rope 37 passes through the guide pulley 36, the through hole and the central groove 33.

The stabilizing mechanism 4 comprises an opening and closing sliding groove 41 arranged on the surface of a convex block on the inner side of the stabilizing sliding sleeve 34, an opening and closing sliding plate 42 is arranged on the inner side of the opening and closing sliding groove 41, and a clamping groove 43 is arranged on the bottom wall of the opening and closing sliding groove 41;

the stabilizing mechanism 4 further comprises a storage groove 44 formed in the stabilizing sliding groove 32, a compression spring 45 is mounted inside the storage groove 44, and a clamping plate 46 is mounted on the compression spring 45.

Set up in the spout 41 that opens and shuts and drag the spring, when the slide 42 that opens and shuts does not receive the force, the slide 42 that opens and shuts is located the spout 41 middle part that opens and shuts, seals draw-in groove 43, and the top keeps away from with the spout 41 roof that opens and shuts, and the distance is greater than the cardboard 46 and is close to the thickness that the spout 41 was held that opens and shuts, and the spout 41 that opens and shuts is located the distance of draw-in groove 43 below is greater than the length of the slide 42 that opens and shuts, and the required power of the spring compression of dragging is less than the required power of compression spring 45 compression.

The bottom of the clamping plate 46 near one end of the opening and closing sliding groove 41 is provided with an inclined surface, and when the clamping plate 46 is positioned in the clamping groove 43, the boundary of the inclined surface and the horizontal plane is flush with the opening of the accommodating groove 44.

The power supply mechanism 5 comprises a top cover 53 arranged on the top wall in the stabilizing chute 32, a contact 54 is fixedly arranged on the inner bottom wall of the top cover 53, an installation groove 55 is formed in the inner bottom wall of the top cover 53, an installation spring 56 is arranged in the installation groove 55, an installation block 57 is arranged at the bottom of the installation spring 56, and the lower part of the top cover 53 is rotatably connected with the bottom plate 51;

the power supply mechanism 5 further comprises a conductive rod 52 fixedly mounted on the top of the stabilizing sliding sleeve 34, and the conductive rod 52 is electrically connected to the broadcasting speaker 2.

The contact 54 is connected with a power supply, the inner bottom wall of the bottom plate 51 is arranged to be an inclined plane, transformer oil is filled in the bottom of the bottom plate 51, a through hole is formed in the bottom of the bottom plate 51, an opening above the through hole is formed in a thread corresponding to the conducting rod 52, the head-tail angle of the thread is one hundred eighty degrees, a sealing ring is arranged on the inner side of the through hole and below the thread, the mounting block 57 extends into the bottom plate 51, a sliding block corresponding to the thread is arranged on the surface of the conducting rod 52, the conducting rod 52 is a telescopic rod, the inner space of the bottom plate 51 is divided into two parts from the through hole according to the height of the bottom surface, and one part of the space with the high bottom surface is the same as the size of the mounting block 57.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.